The eBioABL-93 monoclonal antibody reacts with mouse CD107b, also known as lysosomal-associated membrane protein-2 (LAMP-2). CD107b is a highly glycosylated protein of approximately 120kDa that is expressed intracellularly in lysosomal membranes. It is also transiently expressed on the surface of cytolytic T cells during degranulation, but to a lesser extent than CD107a. It has been reported that CD107b may be identical to the mouse Mac-3 antigen.